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슈미트햄머의 반발도 및 초음파속도에 미치는 결합재의 영향
한민철,이백수,윤기원,최영화,한천구 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
This paper reports the influence of kinds of cement and replacing ratio of fly ash(FA) and blast furnace slag powder(BS) on estimation of compressive strength by non-destructive test. According to the results, the compressive strength, the rebound value of schmidt hammer and ultrasonic pulse velocity show the higher value in order of AMC, UHC and OPC. In concrete replaced with mineral admixture, they are lower at early age, but higher at the age of 91 days compared with plain concrete. As the influence of the kinds of cement, estimated compressive strength by Schmidt hammer is almost same in the case of UHC, but much lower at the same rebound value in the case of AMC, in comparison with OPC. But the influence of mineral admixture is very insignificant. Compressive strength estimated by ultrasonic pulse velocity method shows the higher value by 10MPa, 12.5MPa in the case of UHC and AMC respectively compared with OPC, and the influence of mineral admixture on ultrasonic pulse velocity is insignificant.
裵漢東 慶北大學校 師範大學 1986 敎育硏究誌 Vol.28 No.-
Since 1980, the Eurocommunism has been surprisingly declined. But the cause of its decline has not been clearly verified. The author of this study attempts to search out the cause from the phenomena of its ideological conflicts. Eurocommunists have rejected and criticized the Soviet form of Marxism-Leninism. Trying to make a new interpretation of the original Marxism, they have harshly criticized the 'bureaucratized Marxism' of the Soviet Union. The author thus attempts to throw light on the thought of Gramsci, Azcaretes and Ellenstain, in order to ascertain the source of Eurocommunists theory of Marxism. These three theorists have given a great impact upon the policymaking process of their parties. And their parties, denouncing the 'proletarian internationlism' and 'its dictatorship', have adopted a kind of 'national communism' and claimed to secure the political freedom. Opposing the Soviet communism, they have openly declared a democratic road to socialism as their official policy. In its reality, however, those Eurocommunists could not have fully drifted away from the Soviet communism and also have not been able to connect their ideology to the western social democracy. In other words, the Eurocommunists idelogy has been driven into the corner between the Soviet communism and the western social democracy. If they follow the Soviet line of communism, their voters' support would be dropped down. On the other hand, if they follow the western line of social democracy, their image as revolutionary parties would be impared and finally they would face with crisis of ideological identities. In this reason, the Eurocommunism has been wondering on the streets of the western capitalist world and lost support from their voters. Nevertheless, we cannot easily neglect the power of Eurocommunist and also cannot predict its perishment in the near future.
배한경 서울여자대학교 1981 서울여자대학논문집 Vol.- No.10
For the last 20 years, Korean Economy enjoyed a considerable growth in quantity. However, it has been enmeshed in "stagflation" since 1980 as result of over-all abonormal industrial structure, vulnerability of business organization together with the vicious cycle of inflation. Therefore, the immediate swift to the private-led economy is now greatly recommended for the restoration of potentiality for growth and the establishment of self-reliant economy. However, under the current Korean economic circumstances, for the industrial development in efficiency of productivity and successful management of enterprises, through competition, the reorganization of industry structure and acquisition of sophisticated managerial technique must be prior to the comprehensive check-out of deciding factors for economic change. In other word, we should set up the most updated reproduction system through reciprocal function between the two inter-related business as such as heavy and light, domestic and overseas. Also are prerequisite the professionalism of management for the accelaration of the private-led industry, the improvement in finanical status, and the enhancement of long-term international competativeness.